Air Tight Homes
How to Weatherize Windows with Plastic Film Insulation- DIY Home
The perimeter of your home is a major battle, in the effort to save energy dollars. Whatever heated air in the winter or cooled air in the summer you have already paid for, you want to keep it in the house; conversely, you want to keep out the outside air.
Plugging Air Leaks: The best leak plugging technique is caulking, weather stripping, and closing vents.
Caulking is at least as effective from the inside as from the outside, and it is far less trouble. Therefore, caulk cracks around windows and door trim from the inside. For electrical outlets on exterior walls, use gaskets.
Pay special attention to cracks overhead, because heat rises. Look for gaps around ceiling light fixtures, chimneys, ill-fitting attic doors, and the corners where the ceiling meets walls.
Check all windows and doors for weatherstripping. In colder climates, a new, exterior, insulated metal door with magnetic weatherstripping is usually cost effective. Always use high-quality weatherstripping.
Finally, make certain that openings to the outdoors are closed off. Such openings are not usually obvious. Check chimney dampers, mail slots, kitchen and bath vents, and window air conditioners to make certain they are closed tightly when not in use.